my Honda CR-V keeps stalling out while driving what could be wrong

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a level surface and the engine is off.
• Disconnect the battery to prevent electrical shocks.

2. Fuel System Inspection

• Sub-step 1: Remove the fuel pump relay from the fuse box.
• Sub-step 2: Use a fuel pressure gauge to check the fuel pressure at the fuel rail; it should be within the manufacturer’s specifications (usually around 30-50 psi for most Honda models).
• Sub-step 3: If pressure is low, inspect and replace the fuel filter if clogged and check the fuel pump operation.
• Sub-step 4: Reinstall the fuel pump relay once testing is complete.

3. Ignition System Check

• Sub-step 1: Remove the spark plugs using a socket wrench.
• Sub-step 2: Inspect the spark plugs for wear and deposits; replace them if necessary (gap them to manufacturer specifications).
• Sub-step 3: Test the ignition coils with a multimeter to ensure they are within specified resistance ranges.
• Sub-step 4: Reassemble the ignition components once checks and replacements are done.

4. Air Intake and Vacuum System

• Sub-step 1: Remove the air filter and inspect for dirt or damage; replace if necessary.
• Sub-step 2: Inspect the intake manifold for vacuum leaks using a smoke test or by listening for hissing sounds.
• Sub-step 3: Replace any damaged vacuum hoses.

5. Throttle Position Sensor (TPS) Adjustment

• Sub-step 1: Locate the TPS on the throttle body.
• Sub-step 2: Use a multimeter to check the voltage output at the TPS; it should vary smoothly as the throttle is opened.
• Sub-step 3: If the voltage is erratic or outside the specified range, replace the TPS.